Barbecue cooker



FIG. 1 is a front perspective view of a barbecue cooker showing my newdesign;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a top, rear and left side perspective view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a left side perspective view thereof.

The ornamental design for a barbecue cooker, as shown and described.